CN112062598B - Solid waste prepared ultra-light ceramsite and preparation method thereof - Google Patents
Solid waste prepared ultra-light ceramsite and preparation method thereof Download PDFInfo
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- 239000002910 solid waste Substances 0.000 title claims abstract description 40
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 229910001570 bauxite Inorganic materials 0.000 claims abstract description 27
- 239000005995 Aluminium silicate Substances 0.000 claims abstract description 26
- 235000012211 aluminium silicate Nutrition 0.000 claims abstract description 26
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000002994 raw material Substances 0.000 claims abstract description 25
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims abstract description 21
- 150000001342 alkaline earth metals Chemical class 0.000 claims abstract description 20
- 239000000126 substance Substances 0.000 claims abstract description 19
- 229910052783 alkali metal Inorganic materials 0.000 claims abstract description 17
- 150000001340 alkali metals Chemical class 0.000 claims abstract description 17
- 238000010438 heat treatment Methods 0.000 claims description 17
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 12
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 12
- 239000008188 pellet Substances 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 10
- 239000004088 foaming agent Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 238000001035 drying Methods 0.000 claims description 6
- 238000005453 pelletization Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 238000000227 grinding Methods 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 5
- 239000004927 clay Substances 0.000 abstract description 4
- 239000000454 talc Substances 0.000 abstract description 3
- 229910052623 talc Inorganic materials 0.000 abstract description 3
- 229910052681 coesite Inorganic materials 0.000 abstract description 2
- 229910052906 cristobalite Inorganic materials 0.000 abstract description 2
- 239000000377 silicon dioxide Substances 0.000 abstract description 2
- 235000012239 silicon dioxide Nutrition 0.000 abstract description 2
- 229910052682 stishovite Inorganic materials 0.000 abstract description 2
- 229910052905 tridymite Inorganic materials 0.000 abstract description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 229910052593 corundum Inorganic materials 0.000 abstract 1
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 7
- 239000000463 material Substances 0.000 description 4
- 238000011160 research Methods 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 239000003513 alkali Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000002440 industrial waste Substances 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052729 chemical element Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 150000003377 silicon compounds Chemical class 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/10—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by using foaming agents or by using mechanical means, e.g. adding preformed foam
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/04—Clay; Kaolin
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- C04B33/13—Compounding ingredients
- C04B33/132—Waste materials; Refuse; Residues
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Abstract
The invention provides a solid waste prepared ultralight ceramsite and a preparation method thereof, wherein the ultralight ceramsite is prepared from the following solid waste raw materials: bauxite tailings, red mud and kaolin tailings, and three solid waste raw materials comprise the following chemical components in percentage by weight: 12 to 18.5 weight percent of Al2O3, 48 to 54 weight percent of SiO2, and the total content of alkali metal and alkaline earth metal is as follows: 14 to 19 weight percent. The requirements of 400-grade high-grade ultra-light ceramsite are met, bauxite tailings, kaolin tailings and red mud are cooperatively utilized, traditional shale, clay and talc are not added, the main raw materials of the light building ceramsite are all solid wastes, and the comprehensive utilization of the solid waste raw materials is provided.
Description
Technical Field
The invention relates to the technical field of preparation of ultralight ceramsite, in particular to ultralight ceramsite prepared from solid waste and a preparation method thereof.
Background
The ceramsite is a regular sphere or irregular ceramic particle with certain strength and the granularity of 5-25 mm at most. The surface of the ceramsite is provided with a hard shell, the interior of the ceramsite is porous, and the ceramsite has good physical and chemical properties: high strength, small density, large specific surface area, high porosity, strong adsorption and pollutant interception capability, good chemical and thermal stability, acid resistance, heat resistance, water and gas retention, heat preservation and heat insulation. Ceramsite is a popular new material, and is sought by extensive researchers due to its excellent physical and chemical properties and the advantage of taking solid waste as raw material to achieve the purpose of large-scale consumption of the solid waste. In recent years, a great deal of researches on solid waste ceramsite enrich the raw material selection range of the solid waste ceramsite, and make the production theory of the solid waste ceramsite more perfect.
At present, the research heat of the ceramsite is high, the research results are rich, and various solid wastes can be used as the raw materials of the ceramsite to produce the ceramsite which meets the national standard. But the same short plates are present at the same time: 1. the solid waste doping amount is low, and the aim of comprehensively utilizing the solid waste cannot be achieved by partially researching that the clay is doped to exceed 50 percent; 2. the prepared ceramsite has generally high density, the density grade is more than 600 grades, the strength is generally insufficient, the application range of the ceramsite is greatly limited, and the added value is low.
The document shows that the research of haydite preparation tests based on three industrial wastes of red mud, bauxite tailings and sludge, such as heroic property, energy and environmental protection, 4 months in 2017 and 4 th period in volume 39, the three industrial wastes of red mud, bauxite tailings and sludge are added with water and stirred to prepare balls, and the balls are roasted at 1150 ℃ to prepare expanded haydites, wherein the stacking density is 866.75kg/m 3 Or 694kg/m 3 The density grade is higher, and the roasting temperature is high.
Disclosure of Invention
The invention provides a solid waste prepared ultra-light ceramsite and a preparation method thereof, which meet the requirements of 400-grade high-grade ultra-light ceramsite, cooperatively utilize bauxite tailings, kaolin tailings and red mud, and do not need to add traditional shale, clay and talc, and the main raw materials of the light building ceramsite are solid waste, so that the comprehensive utilization of solid waste raw materials is provided.
The technical scheme of the invention is realized as follows: the solid waste prepared ultra-light ceramsite is prepared from the following solid waste raw materials: bauxite tailings, red mud and kaolin tailings, and three solid waste raw materials comprise the following chemical components in percentage by weight: al (aluminum) 2 O 3 12 to 18.5 weight percent of SiO 2 The content is 48-54wt%, and the total content of alkali metal and alkaline earth metal is: 14 to 19 weight percent.
Furthermore, the content of alkaline earth metal CaO is more than or equal to 9wt%.
Further, bauxite tailings: red mud: the kaolin tailing is prepared from 3 2 48.40wt% of Al 2 O 3 The content of CaO is 18.32wt%, the total content of alkali metal and alkaline earth metal is 15.56 wt%, and the content of CaO is 15.15wt%.
A preparation method of ultra-light ceramsite by solid waste comprises the following steps:
(1) Grinding the bauxite tailings, the red mud and the kaolin tailings to be less than-0.074 mm;
(2) The formula is designed according to the chemical compositions of bauxite tailings, kaolin tailings and red mud, so thatThe chemical components of the three solid waste raw materials after proportioning are as follows: al (Al) 2 O 3 12 to 18.5 weight percent of SiO 2 The content is more than or equal to 45wt%, and the total content of alkali metal and alkaline earth metal is as follows: 14 to 19 weight percent;
(3) According to the formula in the step (2), taking three ground solid waste raw materials, adding a foaming agent, uniformly mixing, adding water, homogenizing for 2 hours, pelletizing, and drying to obtain green pellets;
(4) And roasting the green pellets to obtain the ultra-light building ceramsite product.
Further, in the step (4), the roasting temperature is as follows: raising the temperature to 100 ℃ in a room, wherein the heating rate is 10 ℃/min, and keeping the temperature for 10min under the condition of 100 ℃; heating to the preheating temperature of 700 ℃ at 100 ℃, wherein the heating rate is 15 ℃/min, and keeping the temperature for 10min at 700 ℃; heating to the roasting temperature of 1120-1130 ℃ at 700 ℃, heating rate of 10 ℃/min, and keeping the temperature at 1130 ℃ for 30min.
Further, the amount of the foaming agent in the step (2) is 0.1-0.2% of the total mass of the three solid waste raw materials.
Further, in the step (3), after pelletizing, drying for 1-2h at the temperature of 80-95 ℃.
The invention has the beneficial effects that:
the ultra-light building ceramsite prepared by the method meets the requirements of 400-grade super-light ceramsite in JC 487-1992-ultra-light ceramsite and ceramic sand and GB/T17431.1-2010 light aggregate and test method thereof, and the cylinder pressure strength of the ultra-light building ceramsite is far higher than the relevant standard requirements. The bauxite tailings, the kaolin tailings and the red mud are synergistically utilized, the characteristics of aluminum enrichment (relative aluminum enrichment), silicon enrichment of the kaolin tailings and alkali metal and alkaline earth metal enrichment of the red mud are utilized, the traditional shale, clay and talc are not needed to be added, and the main raw materials of the light building ceramsite are all solid wastes.
The ultra-light building ceramsite of the invention achieves the overall foaming and the ceramic process by roasting, the roasting temperature is 1120-1130 ℃, the temperature is lower than the 1150-1200 ℃ of the ceramsite prepared by traditional minerals, the energy consumption is greatly reduced, the relation between the bulk density of the ceramsite and the roasting temperature is large, and the bulk density of the ceramsite soil can be less than 400 kg.m by adopting 1120-1130 DEG C -3 Above or below this temperature range, the bulk density of the ceramsite is too high. During roasting, the room temperature is firstly increased to 100 ℃, the heating rate is 10 ℃/min, the temperature is kept for 10min under the condition of 100 ℃, and the raw pellets are prevented from being cracked due to residual water in the raw pellets and too fast heating.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a flow chart of the present invention for preparing ultra-light ceramsite from solid wastes.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art based on the embodiments of the present invention without inventive step, are within the scope of the present invention.
The solid waste prepared ultra-light ceramsite is prepared from the following solid waste raw materials: bauxite tailings, red mud and kaolin tailings, and three solid waste raw materials comprise the following chemical components in percentage by weight: al (Al) 2 O 3 12 to 18.5 weight percent of SiO 2 The content is 48-54wt%, and the total content of alkali metal and alkaline earth metal is as follows: 14 to 19 weight percent, wherein the content of alkaline earth metal CaO is more than or equal to 9 weight percent.
A preparation method for preparing ultra-light ceramsite by solid waste comprises the following steps:
(1) Grinding the bauxite tailings, the red mud and the kaolin tailings to be less than-0.074 mm;
(2) According to the chemical composition of bauxite tailings, kaolin tailings and red mud, the formula is designed, so that the chemical components of three solid waste raw materials are proportioned：Al 2 O 3 12 to 18.5 weight percent of SiO 2 The content is more than or equal to 45wt%, and the total content of alkali metal and alkaline earth metal is as follows: 14 to 19 weight percent;
(3) According to the formula in the step (2), taking three ground solid waste raw materials, adding a foaming agent, uniformly mixing, adding water, homogenizing for 2 hours, pelletizing, and drying to obtain green pellets;
(4) And placing the green pellets into a muffle furnace for roasting to obtain the ultra-light building ceramsite product.
The roasting temperature is as follows: raising the temperature to 100 ℃ in a room, wherein the heating rate is 10 ℃/min, and keeping the temperature for 10min under the condition of 100 ℃; heating to the preheating temperature of 700 ℃ at 100 ℃, wherein the heating rate is 15 ℃/min, and keeping the temperature for 10min at 700 ℃; heating to 700 deg.C to 1120-1130 deg.C, heating at 10 deg.C/min, and holding at 1130 deg.C for 30min.
The amount of the foaming agent in the step (2) is 0.1-0.2% of the total mass of the three solid waste raw materials.
In the step (3), after pelletizing, drying for 1-2h at the temperature of 80-95 ℃.
Example one
The bauxite tailings in the test are bauxite tailings in Zhongzhou aluminum industry of Henan Johnson, and the analysis results of the main chemical components of the bauxite tailings are shown in Table 1. Al in tailings 2 O 3 The content is as high as 38.90 percent and is used as a main aluminum source raw material.
Table 1 main chemical composition of bauxite tailings (%)
| Composition (I) | Al 2 O 3 | SiO 2 | MgO | Na 2 O | K 2 O | CaO | Fe 2 O 3 |
| Content/% | 38.90 | 28.12 | 0.49 | 0.26 | 3.80 | 0.63 | 12.32 |
The kaolin tailings in the test are sandy kaolin mineral tailings, and the analysis results of the main chemical components of the kaolin mineral tailings are shown in table 2. SiO2 2 The content of the silicon-containing organic silicon compound is as high as 84.55 percent as the main silicon-containing raw material.
TABLE 2 Kaolin tailing Main chemical element composition
| Composition (I) | Al 2 O 3 | SiO 2 | MgO | Na 2 O | K 2 O | CaO | Fe 2 O 3 |
| Content/% | 8.23 | 84.55 | 0.13 | 0.14 | 2.53 | 0.03 | 1.47 |
The red mud used in the test is red mud from the Zhongzhou aluminum industry of Henan Jones, and the analysis results of the main chemical components of the red mud are shown in Table 3. The red mud contains a large amount of CaO and K 2 O as the main source material for alkali (earth) metals.
Table 3 main chemical composition of red mud (%)
| Composition (A) | Al 2 O 3 | SiO 2 | MgO | Na 2 O | K 2 O | CaO | Fe 2 O 3 |
| Content/% | 11.18 | 20.47 | 1.32 | 3.06 | 1.64 | 37.53 | 9.64 |
The preparation process of the ultra-light building ceramsite is shown in a figure 1. Grinding the bauxite tailings, the kaolin and the red mud tailings to be less than-0.074 mm, wherein the ground granularity is required to ensure that all materials pass through a 200-mesh sieve; according to the chemical composition of the bauxite tailings, the kaolin tailings and the red mud, the formula is designed, so that the chemical components of the mixed three materials meet the following requirements: al (aluminum) 2 O 3 ：12％～18.5％；SiO 2 :48 to 54 weight percent; total content of alkali and alkaline earth metals (R) 2 O + RO): 14 to 19 percent. Adding a SiC foaming agent, uniformly mixing, adding water, homogenizing for 2 hours, pelletizing and drying to obtain green pellets, putting the green pellets into a muffle furnace for roasting, and cooling to obtain the ultra-light building ceramsite product.
The method comprises the following steps of (1) preparing bauxite tailings: red mud: kaolin tailing =3 2 48.40% of Al 2 O 3 The content of CaO was 18.32%, the content of CaO was 11.46%, and the total amount of alkali metals and alkaline earth metals was 15.56%. The baking temperature is 1130 ℃, the performance index and the related requirements of the obtained ceramsite are shown in the table 4, and the ceramsite meets the related index requirements.
TABLE 4 comparison of the Performance indexes of the solid waste ceramsite with the national standard
The first comparative formula is as follows:
1: bauxite tailings: red mud: kaolin tailings = 1; siO2 2 47.63% of Al 2 O 3 The content of the CaO is 15.54 percent, the total content of alkali metal and alkaline earth metal is 19.46 percent, and the content of the CaO is 15.15 percent.
2: bauxite tailings: red mud: kaolin tailings = 2; siO2 2 49.16% of Al 2 O 3 The content of CaO was 7.77%, and the total content of alkali metals and alkaline earth metals was 11.62%.
The apparent density of the ceramsite obtained by the formula 1 is 899kg/m 3 Having a bulk density of 490kg/m 3 Its density is slightly higher than that of SiO 2 The content is slightly low, the content of alkali metal is slightly high, the liquid phase of the ceramsite is more, the shrinkage phenomenon is generated in the firing process, and the density is larger.
The ceramsite obtained by the formula 2 has no obvious expansion phenomenon, and the bulk density of the ceramsite is more than 1000kg/m 3 The reason for this is Al 2 O 3 The content, caO content, total amount of alkali metal and alkaline earth metal are out of the scope of claims, al 2 O 3 The content is higher, and the total content of alkali metal and alkaline earth metal and the content of CaO are lower.
And a comparative formula II:
3: bauxite tailings: red mud: kaolin tailings = 2; siO2 2 54.04% of Al 2 O 3 The content of the CaO is 15.25 percent, the total content of alkali metal and alkaline earth metal is 15.39 percent, and the content of the CaO is 11.4 percent.
4: bauxite tailings: red mud: kaolin tailing = 1; siO2 2 59.68% of Al 2 O 3 The content of CaO is 12.18 percent, the total content of alkali metal and alkaline earth metal is 14.94 percent, and the content of CaO is 11.34 percent.
The apparent density of the ceramsite obtained by the formula 3 is 847kg/m 3 Having a bulk density of 461kg/m 3 Its density is slightly higher due to SiO 2 The content is slightly higher, resulting in a slightly higher bulk density.
The apparent density of the ceramsite obtained by the formula 4 is 816kg/m 3 Having a bulk density of 444kg/m 3 Reason for this is SiO 2 The higher content results in a slightly higher bulk density.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, which is intended to cover any modifications, equivalents, improvements, etc. within the spirit and scope of the present invention.
Claims (3)
1. The preparation method for preparing the ultralight ceramsite by solid waste is characterized by comprising the following steps of:
(1) Grinding the bauxite tailings, the red mud and the kaolin tailings to be less than-0.074 mm;
(2) According to the chemical composition of the bauxite tailings, the kaolin tailings and the red mud, a formula is designed, so that the chemical components of the three solid waste raw materials are matched as follows: al (Al) 2 O 3 The content is 12 to 18.5wt percent and SiO 2 The content is 48-54wt%, and the total content of alkali metal and alkaline earth metal is: 14 to 19wt percent, and the content of alkaline earth metal CaO is more than or equal to 9wt percent;
(3) According to the formula in the step (2), taking the ground three solid waste raw materials, adding a foaming agent, uniformly mixing, adding water, homogenizing for 2 hours, pelletizing, and drying to obtain green pellets;
(4) Roasting the green pellets to obtain an ultra-light building ceramsite product, wherein the ultra-light building ceramsite product is 400-grade super-light ceramsite;
in the step (4), the roasting temperature is as follows: raising the temperature to 100 ℃ in a room, wherein the heating rate is 10 ℃/min, and keeping the temperature for 10min under the condition of 100 ℃; heating to the preheating temperature of 700 ℃ at 100 ℃, wherein the heating rate is 15 ℃/min, and keeping the temperature for 10min at 700 ℃; heating to 700 deg.C to 1120-1130 deg.C, heating at 10 deg.C/min, and keeping at 1130 deg.C for 30min;
the amount of the foaming agent in the step (3) is 0.1-0.2% of the total mass of the three solid waste raw materials, and the foaming agent is SiC.
2. The preparation method according to claim 1, wherein the ratio of bauxite tailings: red mud: the kaolin tailing is prepared from 3 2 48.40wt% of Al 2 O 3 The content of CaO is 18.32wt%, the total content of alkali metal and alkaline earth metal is 15.56 wt%, and the content of CaO is 15.15wt%.
3. The method according to claim 1, wherein in the step (3), the pellets are dried at 80 to 95 ℃ for 1 to 2 hours.
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| CN114276073B (en) * | 2021-05-25 | 2023-03-31 | 山西黄河前沿新材料研究院有限公司 | Light high-performance concrete for fabricated building and preparation method thereof |
| CN113480325B (en) * | 2021-08-16 | 2023-04-07 | 苏州大学 | Building ceramsite based on fluorite tailings and preparation method thereof |
| CN114133223A (en) * | 2022-01-07 | 2022-03-04 | 山东理工大学 | Energy-saving and environment-friendly low-cost ceramsite proppant and preparation method thereof |
| CN114315407B (en) * | 2022-01-12 | 2023-05-26 | 湖南大学 | Method for preparing small-particle-size porous ceramic sand from bauxite tailings |
| CN114751767B (en) * | 2022-04-07 | 2023-05-12 | 河南城建学院 | Porous aggregate for ultra-high performance concrete internal curing and preparation method thereof |
| CN115259885B (en) * | 2022-08-11 | 2023-08-01 | 镇江市雅盛节能环保材料有限公司 | Bauxite tailing sintered ceramsite and preparation method thereof |
| CN117466621B (en) * | 2023-12-28 | 2024-03-08 | 西南石油大学 | Hollow ultra-light ceramsite based on oil-based rock debris and preparation method thereof |
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| HU171820B (en) * | 1975-03-17 | 1978-03-28 | Ferenc Puskas | Method for ceramic industrial utilizing red mud of alumina production |
| CN104909799A (en) * | 2015-05-26 | 2015-09-16 | 福建省建筑科学研究院 | Lightweight high-strength ceramsite and preparation method thereof |
| CN104876625B (en) * | 2015-05-27 | 2017-09-19 | 中钢集团马鞍山矿山研究院有限公司 | A kind of method that utilization clay iron-containing tailing prepares Superlight ceramsites |
| CN106116634A (en) * | 2016-06-28 | 2016-11-16 | 蒋文兰 | Kaolin Tailings lightweight through hole haydite |
| CN106116637A (en) * | 2016-06-28 | 2016-11-16 | 蒋文兰 | Bauxite mine tailing lightweight through hole haydite |
| CN109665813A (en) * | 2018-12-19 | 2019-04-23 | 桂林理工大学 | A kind of raw material mixing match of red mud porcelain granule and preparation method thereof |
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